Viper 790 - 1999 Benz ML 320

I installed a Viper 790 on a 1999 Benz ML 320 using a Universal Transponder Module.  The remote start function does not work properly.  I have attempted almost everything that I can think of.  If you place the key inside the transponder, the remote start works just fine.  It seems like not matter how many times I wrap the wire around the transponder, it does not function properly.

Any suggestions would be greatly appreciated.

I installed a Viper 790 on a 1999 Benz ML 320.  This vehicle has a single wire lock and unlock.  The locks are working just fine, but I cannot get the unlock to work properly. 

Any suggestions, diodes, resistors, etc.........???????