2005 RS3200 alarm install help

Is there an upgrade model for the alarm or do I have to order the entire install kit? My 03 just had the LED and GBS....any help will be appreciated.

I'm removing the alarm from an 03 Taco and adding it to an 05 -- anyone have the instructions for the new install? Thanks!!

Also, I've seen a different part number for the 05 alarm...anyone know if it actually the same one or not? Some sites show it as 08586-04840 and some -04820


OK..I just took delivery of my 05 - Took off the moldings...and tried the old alarm...won't fit. The writing on the old one is for horizontal placement - the 05's are vertical. Thanks to anyone who was considering helping.