Re: Tundra w/non-JBL to JBL Navi Conversion Project
Wouldnt it be better just to rip out the factory head unit and replace it with a Kenwood or Alpine Double-Din with GPS moudule? You can get a harness and with the non-JBL system, you can still use your factory speakers. I have a 2004 Double Cab with the JBL system and I replaced the factory head unit with a Kenwood 6019 (which is awesome) and I installed a 4-channel amp in place of the factory amp (all the wires lead to this location, and was a simple hook-up). Have I not had the JBL system, I could have used my factory amp to power the speakers, but with the JBL system you need a data signal to trigger the amp which you cannot get from a factory harness. This is just my 2 cents worth.
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