how can you get another keylessremote for my 96 venge and a rough guess on how much it costs, do they have a trunck unlocker on the older models and some of the venges and sebringsin the junk yard have and auto dim rear view mirror with a temp gauge in it and wonderin if i can put that in my car cuz mine doesnt have it

 

No venge bring came with a factory keyless trunk unlocker ... they could be installed aftermarket ... factory had the cable unlockerby the gas release ...
Keyless remotes are available on ebay ... programming instructions are available ... I've seen them run from $10/$30
Autodim rear view can be wired in