I purchased a new 2015 Ford Transit Connect XLT Cargo Van about 3 months ago. Upgraded the stereo with a top of the line Kenwood Excelon stereo, bluetooth system (for phone), and backup camera. Using Metra harness and module. We have a parasitic drain on the battery which causes it to go dead after a day or two. This was installed by a top level car stereo install shop that is very experienced. Have talked with Metra numerous times and tried everything they suggested.
What is going on here? I have read on the internet of other people having Ford Transit battery problems.
