alarm with autostart 2005 nissan altima

Here is part of the law:

The Law

Federal law sets forth requirements for warranties and contains a number of provisions to prevent vehicle manufacturers, dealers and others from unjustly denying warranty coverage. With regard to aftermarket parts, the spirit of the law is that warranty coverage cannot be denied simply because such parts are present on the vehicle, or have been used (see Attachment A).The warranty coverage can be denied only if the aftermarket part caused the malfunction or damage for which warranty coverage is sought. Disputes in this area usually boil down to arguments over facts and technical opinions, rather than arguments over interpretations of the law.

You can read more here, again good luck and God Bless.

http://www.sema.org/main/semaorghome.aspx?ID=8124

under the Magnuson-Moss Warranty improvement act a manufacturer cannot make its vehicle warranty conditional on any brand of security system unless they offer it free of charge or the federal trade commission has specifically published that only a vehicle manufacturer's product may be used. the install shop can install the system without your wife knowing unless it has an extended range antenna. also the LED will be visable. hope this helps.