Instrument panel and Speedometer not working

[ag07]

I have a 07 Toyota Solara SLE V6 Convertiable when I put it either in reverse or drive the instrument panel light goes out and my speedometer does not work...BUT it works fine in Park and in Neutral? I did just get an Autopage remote start and alarm put on and the guy who installed it can not figure it out and has tried everything and not to mentioned he is a very good at what he does and has never in 13 years had this happen...Any suggestions on what to do or what it could be?
Thanks!

[jbean920]

Did you ever get it fixed or figure out what was wrong? I have the same problem. any help will be great.