Most helpful critical review
on October 28, 2011
I used this in when installing an Alpine INA-W910 in order to bypass the video/menu lockout. I do not watch video while driving, however my 3-year old is able to clearly see the head unit from the back seat, so that's why I need it.
The unit comes pre programmed to bypass the Alpine, so that made installation really easy. However, when I was testing out the system, it would not work every time so I tried to manually program it; the directions were very straightforward and clear.
My main problem is that the TR-7 is inconsistent in unlocking the Alpine. When I start the car, about 50% of the time, the system is still locked. If I turn the head-unit off and then on again, there is a 90% chance the system will be unlocked. The rest of the time, it stays locked (to my daughter's dismay) unless I wait a few minutes and then try again - once or a few times.
So, it usually works, but if I knew it was going to be like this, I would have just wired a couple mechanical switches to do the job.