I had originally posted this in the 2nd gen tacoma forums, but I figured I'd do better posting it here.
A few days ago, I bought an '08 Tacoma TRD Sport Edition. The stock head unit has no aux input, and I listen to SiriusXM on my phone all the time, so I purchased a Tranzit Blu bluetooth adapter for the stock radio.http://www.amazon.com/iSimple-ISFM21.../dp/B005XUEMK6 I installed it, and spliced it into the head unit's switched accessory power and ground. While trying to install, I tested the connections using a multimeter to figure out which was hot and which was ground. Now my speakers don't work. There's a slightly audible popping noise when first turning on the truck. I checked the fusebox in the cab and under the hood and they're all good. Is there a fuse on the speaker wire or some radio code that prevents theft because i disconnected the radio, or something? Don't really know much about car audio, worried I blew my speakers in a truck less than a week old(to me) and could use any help that I can get.