Fits 88-98 GMC Sierra Ext Cab Alpine S-W10D4 Single 10 Sub Box HA-A800.1 Amp

Shipping Policy

Although many orders are shipped the same day that we receive them, due to a variety of factors it can take up to 24 hours to process your credit card information and ship your order. FedEx picks up shipments daily, Monday through Friday around 4:00 PM (Eastern Time). They DO NOT operate on weekends or holidays. If you place an order for shipping on Friday night, the next available shipping day is Monday.

Transit time depends on where you are located and which warehouse we ship your order from.

Estimated Transit Times

IMPORTANT INFORMATION on expedited shipments such as Next Day Air, Second Day Air and 3- Day Select:

1.) The pickup day is not counted as a transit day.

2.) Weekend and holidays are not counted as transit days.

Example: If you place an order Friday evening for 3-Day Select shipment and the following Tuesday happens to be a holiday, your order will be processed for Monday shipment. Since Tuesday is a holiday, the first transit day is Wednesday, the second transit day is Thursday and the final transit (and delivery) day is Friday. It is important to understand this scenario for all expedited shipment methods.

To avoid delay in the processing of your order, please be sure to provide us with accurate credit card information (name as it appears on the card, billing phone number and address). If this information does not match exactly with what the credit card company has on file for you, you will need to be contacted for the correct information. Contact is normally to the email address that you have provided on your order form. If this information is not correct or you don’t check your mail regularly, you may miss important correspondence from us regarding your order.

HiFiSoundConnectionships via FedEx and USPS depending on the item. Larger items and heavier orders will ship via FedEx services. Smaller items such as harnesses, fuses etc will ship via USPS service. Although our shopping cart calculates shipping via FedEx, we sometimes will ship via FedEx, DHL or another similar carrier. Each carrier has it’s areas where service is better than another and we try to select the best service to get your order delivered in the most timely manner. In instances we use FedEx or another carrier, the shipping charges will be exactly as calculated on our shopping cart. We ship to both the US and Canada and we can ship internationally but PLEASE be sure to contact us first before placing an international order. Note: For any orders shipping internationally you are responsible for any and all custom duty fees and taxes. Most items shipped via FedEx ground will arrive within 2 to 7 days depending on your location in the US and 7 to 14 days within Canada.

Free shippingon items only applies to orders shipping to the Continental United States. If you live outside the Continental United States you will have to pay for the normal shipping charges to your location.

Customer Service

We are here to help! Our customer service staff will be glad to assist you with any questions or concerns you may have. We have a service member available 5 days a week to answer your questions.

You can call us from Monday through Friday from 8:30AM – 9:00PM Central Standard Time or Saturday through Sunday from 10:00AM to 7:00PM Central Standard Time.

You can also email us and one of our friendly staff will get back to you usually within one to two hours. All emails are answered in the order they are received and we do answer them all. Include your invoice # and email address with all emails. Please make sure to check your junk mail filter for replies. Sometimes email programs will accidentally place our emails in your junk mail folder.

Return Policy

Within 14 days of receiving your product you may return certain items in their original condition and packaging for a refund.

We are not responsible for any shipping and/or handling charges to return an item to HiFiSoundConnection. We will pay the shipping of replacements back to your location.
Your refund will be subject to a 20% restocking fee with a $10.00 minimum fee.
If exchanging you will NOT be subject to the 20% restocking fee. You WILL have to pay the return shipping costs.

We doNOTrefund the amount you paid for shipping, duties, taxes, or any other charge incurred getting the item to your location.
We reserve the right to charge a 35.00 flat fee on warranty / exchanges if the original product packaging is not included.
Other fees associated with items not included with the returned merchandise such as bass knobs, fuse holders, manuals, etc that were not included with the package are also subject to additional fees depending on the item not returned.
All returns require an RMA (return merchandise authorization) number. Any packages sent back without an RMA number will be delayed and possibly rejected. Please contact us to obtain an RMA number.
All returns will be tested before any refund is given.
All International Sales are final, the return/exchange policy does not apply to International orders
The return policy does not cover damage due to improper installation, if an item was physically altered by you, or services performed by anyone other than HiFiSoundConnection.

Within 30 days of receiving your product, if it becomes defective you can claim our in-house HiFiSoundConnection warranty, unless otherwise stated on the product page.

We are not responsible for any shipping and / or handling charges to return a defective item to HiFiSoundConnection.
We will pay for the shipping on the replacement product going back to your location.
We reserve the right to refer you to the manufacturer for any warranty exchanges.
We reserve the right to switch you to a comparable product if the original product is out of stock or discontinued.
We will not send your replacement item until we have received and checked in the defective product, this may take up to5 business days. All returns will be tested before any refund is given.
Any item that is returned MUST first have RMA (return merchandise authorization) number before sending the package, if the package does not have an RMA number clearly on the outside of the return packaging it will be automatically refused. Please contact us to obtain an RMA number.
Subwoofer Exception: Our warranty does not cover blown voice coils, or subwoofers that have been punctured. This is considered abuse by the manufacturer and is not covered under warranty.
Defective items cannot be returned for a refund.
All International Sales are final, the return/exchange policy does not apply to International orders
The return policy does not cover damage due to improper installation, if an item was physically altered by you, or services performed by anyone other than HiFiSoundConnection.

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Fits 88-98 GMC Sierra Ext Cab Alpine S-W10D4 Single 10 Sub Box HA-A800.1 Amp

Fits 88-98 GMC Sierra Ext Cab Alpine S-W10D4 Single 10 Sub Box HA-A800.1 Amp