I do well enough with wrenching, but when it comes to electrical I'm less handy. Is the BCM broken up into segments, such as one for turn signals, one for power door locks, one for windows, etc.? If so, can a single segment be swapped out? Being on limited income, a $125 part (new BCM) is pretty steep for me. I have an 05 T&C, with a wheelchair lift, and otherwise everything is in tip-top condition.