I recently had an alarm installed in my 300zx. For obvious reasons I have not included the specific product in my modifications list. Chris Rogers of Audio Express did a very good job on installing the system and I am pleased with the quality of the workmanship. I obtained Chris's name from the Skylines Australia website where he has nothing but rave reviews for his work. Chris may be contacted at sales@audioexpress.com.au or you may PM me for his mobile. Chris is located on the north side of Brisbane.