Ford Mustang Forum - View Single Post - Aftermarket Headunit w/ shaker 500 system
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post #5 of (permalink) Old 01-06-2014 Thread Starter
ICroll's Avatar
Joined: Sep 2013
Location: Oceanside
Posts: 27
Originally Posted by bl817 View Post
you will need the adaptor with the red and white rca plugs and blue/white amp turn on wires. its a metra product. I just installed a headunit in my 05. my door subs weren't working so I did some research on here and the red or white rca plug needs to be connected to your rear or sub rca output on the back of your headunit. also make sure that your sub option is turned on thru the audio menu. test to make sure it works prior to install. hope this helps. I ordered all my install stuff from crutchfield. the harnesses that you can buy from the mart or big box stores does not come with the additional adaptor. good luck
1) Metra 71-048 Speaker Wiring Adapters Work with select 1998-up vehicles — connect new speakers to the factory wiring plugs at

2)Receiver Wire Harness For select 2003-up Ford, Lincoln, Mazda, and Mercury vehicles at

I'm assuming #2 is the harness you're referring to

2014 Deep Impact Blue GT - Stock
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