Join Date: Apr 2019
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Dead battery after installing Kenwood w/iDatalink
I recently purchased a Kenwood DMX7705S headunit from Crutchfield. The radio also came with the iDatalink Maestro HRN-RR-TO1. As far as I can tell I connected all the plugs between the head unit - Maestro - Tundra (2010 SR5 4x4 ExtCab). The issue I keep having is the truck will not start if I haven't driven it for more than a few days (it's not my daily driver). Working with Crutchfield support we tried many things - removing fuses, re-setting the iDatalink, and then finally completely replacing the headunit, iDatalink, and wiring harness. When the fuses were removed - 1 for the radio, 1 for the whole center console - a DMM showed no drain on the battery. Putting the center console fuse back in show no drain, but putting the radio fuse back in show a drain. Something in the setup from Crutchfield was not working correctly. That's when they decided to replace everything. Now it's been more than a month since everything was replaced and I thought that the problem was resolved. I didn't drive the truck for the past week and now it won't start. Also, the first time it died on me, I replaced the battery (it was several years old).
I'm at a loss for what could be causing the dead battery, other than the iDatalink/Radio/Wiring harness are not compatible with a 2010 Tundra. What can I try next? I'm about ready to give up on this radio and go back to the stock radio. I need my truck to start anytime I want to use it. :-(