Please help me correct my error with a battery charger. Before I went to Iraq in Feb, I bought a battery conditioner from Griots and put it on my 02 996TT. It has been on since that time. Yesterday, my boys went to my house to get the car ready for my return and they tell me I put the conditioner on incorrectly and the car will not shift out of first gear (It's a tiptronic). How do I fix this? Have I seriously screwed something up?

 

I know of a car that the owner connected the battery incorrectly and it ended up frying some control modules, radio amp, etc. Not sure but you may have a similar issue.

 

I'm finally home and here's what the car is doing. It starts OK, but the red LEDs that indicate which gear the car is in flashes alternately between D and 4 (or M and 4 if I have it in Manual) and the Check Engine Light is on all the time. It won't shift out of 1st manually or by running it up to redline. Also, Bos may be right about me frying the radio amp, it won't turn on. Any ideas?