na_rsx Posted April 30, 2008 Share Posted April 30, 2008 Hi, new guy here, but not new to car audio. I am installing an after market amp on a 2003 Lexus GS300, and I wanted to know whats the best way to route the power wire? Also is there a tutorial guide on how to take the radio out so I can tap into the stock harness. If I get some help, or answers, I will take pics of the install, and post it back here for future use. My only concern is routing the power wire from the battery to the back, and tapping into the headunit to connect the line output converter. BTW I am installing: (2) 10" Pioneer Premier D4 subs (wired into 1 ohm) (1) Hifonics TXi 1008D (1000rms @ 1 ohm) (1) Kicker 4 Gauge Amp kit w/ RCA's and Speaker wire (1) Dual 10" ported box, 2.5 cubic feet Juan Quote Link to comment Share on other sites More sharing options...
BD Mobile Electronics Posted May 1, 2008 Share Posted May 1, 2008 Can you get to the rear speakers in the trunk? If not here is the information for your car. Why are you not changing your stock radio? Battery BLUE/YELLOW (+) RADIO HARNESS Accesory GRAY (+) RADIO HARNESS Ground WHITE/BLACK (-) RADIO HARNESS Illumination GREEN/WHITE (+) RADIO HARNESS Power Antenna RED/BLACK (+) RADIO HARNESS Amp Turn On BLACK/ORANGE (+) RADIO HARNESS LF Speaker (+) BLACK LF Speaker (-) WHITE RF Speaker (+) PINK RF Speaker (-) ORANGE LR Speaker (+) RED LR Speaker (-) GREEN RR Speaker (+) LIGHT GREEN RR Speaker (-) VIOLET Radio Security YEs Quote Link to comment Share on other sites More sharing options...
na_rsx Posted May 1, 2008 Author Share Posted May 1, 2008 Can you get to the rear speakers in the trunk? If not here is the information for your car. Why are you not changing your stock radio? Battery BLUE/YELLOW (+) RADIO HARNESS Accesory GRAY (+) RADIO HARNESS Ground WHITE/BLACK (-) RADIO HARNESS Illumination GREEN/WHITE (+) RADIO HARNESS Power Antenna RED/BLACK (+) RADIO HARNESS Amp Turn On BLACK/ORANGE (+) RADIO HARNESS LF Speaker (+) BLACK LF Speaker (-) WHITE RF Speaker (+) PINK RF Speaker (-) ORANGE LR Speaker (+) RED LR Speaker (-) GREEN RR Speaker (+) LIGHT GREEN RR Speaker (-) VIOLET Radio Security YEs I never thought about the rear speakers, reason i wanted to tap behind the headunit because i heard its not a pure signal, the amp already had its way with it, if that makes sense. My friend wants to keep his stock radio because he does not want to attract attention, usually when people see a face off, they think system, and thats when they break into a car lol. So yeah, we got all the stuff, i am doing the install on Sunday morning. It will be a lot easier Quote Link to comment Share on other sites More sharing options...
na_rsx Posted May 5, 2008 Author Share Posted May 5, 2008 Okay i got mostly everything installed, one problem though, i could not find the remote wire. The ones listed in post 2 did not match the harness i was looking at, right now its getting the constant 12v. Quote Link to comment Share on other sites More sharing options...
coolc7116 Posted October 2, 2009 Share Posted October 2, 2009 I'm trying to install an aftermarket radio in an 03 GS300. Would you happen to have or know how to find a harness to connect it into the factory wiring? I've seen harnesses from Metra, 70-8113 and 71-8113, as well as one from autotoys. But nobody seems to guarantee that it will work. Can you get to the rear speakers in the trunk? If not here is the information for your car. Why are you not changing your stock radio? Battery BLUE/YELLOW (+) RADIO HARNESS Accesory GRAY (+) RADIO HARNESS Ground WHITE/BLACK (-) RADIO HARNESS Illumination GREEN/WHITE (+) RADIO HARNESS Power Antenna RED/BLACK (+) RADIO HARNESS Amp Turn On BLACK/ORANGE (+) RADIO HARNESS LF Speaker (+) BLACK LF Speaker (-) WHITE RF Speaker (+) PINK RF Speaker (-) ORANGE LR Speaker (+) RED LR Speaker (-) GREEN RR Speaker (+) LIGHT GREEN RR Speaker (-) VIOLET Radio Security YEs Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.