If the details are right and it has full history?
With the arse ache I'm having with the replacement alarm and even higher petrol prices going on and on and on, time maybe for something a little newer with a lot less miles and a more reliable history.
I love the aero, but I can't use the alarm for risk of it going off after between 30 seconds and 5 minutes for no reason, I get sick of being woken at 6AM at the weekend when it there is no one arround. I can live without the alarm apart from the insurance, but I need it imobilised if I park up anywhere and you don't get that using the key.
The alarm fitters have
1) replaced the ultra sonic controller 2) adjusted the ultra sonic controller 3) replaced the main alarm 4) checked the battery condition/drain/load when armed.And only once did it show the problem with them. As always it might be fine for 3 days, or it might go off 4 times a day.
It won't go off when the fan kicks in when the engine is off, and it won't kick in when the fan stops, bit it might go off 5-30 minutes later.
They have had it back to the shop 5 times in the last 2 months and each time "fixed it", and this Saturday the head tech from Gemini UK is coming to "fix it" as they don't know what is wrong now.