Head unit Install and Disconnecting the Battery

[westwoap1980]

Alright folks

I've just recently had my 2 fobs re-paired to my sigma alarm so the central locking and immobiliser is disabled. I want to install a head unit this weekend and will be disconnecting the Battery. Will this unpair the fobs again or do I need to put it in a certain mode I.e unlock and immobiliser off then Battery disconnected or something else.

Cheers all!

[Jay762]

Working on my 2008 models I have not had an issue with disconnecting the Battery and having to resync the fobs

[Dr. Acula]

Replaced my 2007 Foresyer head unit and speakers, no Battery disconnect necessary.