Thanks for the info! I've figured out most of the 3 connections....VSS, Reverse, and Parking brake. Issue now is do I need a "Y" connector for the 2 stock antenna inputs?
Upgrading my 2004 4Runner head unit from the stock JBL 10 speaker system. Anyone know the best places to tap into the wiring system for the car speed signal, parking brake, and reverse gear inputs? Integration of the audio works great with the TYT0-01 Metra harness. Just need the other 3 input...
Adding amp/sub
The JBL system lacks depth (bass) to me more than anything else. I added 2 Infinity perfect 12's along with an MTX 801D amp. Now it sounds so much better. Little nervous at first, considering this vehicle was brand new, tearing into it. Ended up purchasing the 2004 factory...