These people may be able to offer advice about your transponder (or transponda)
http://abacuscaralarms.co.uk/alarmshop/index.php?act=viewProd&productId=117
Theres some more info in the later posts here:
http://www.pocuk.com/forums/viewtopic.php?t=104859&sid=d5f8569742e99cfd21c707d9aeb7a25f
Anon, February 2016
