e46 diagnostic cables... airbag light

I have bought different cable's from eBay. but can't get them to fully connect..... so I'm fed up...
have airbag light and no idea what the problem is.. and I'm not buying another cable..

anybody have way diagnosis of this problem that can help me.... just need a scan... and maybe reset

I'm in dublin south... and desperate

try to contact Mick from germanicks.com , he can help you out , he might give you a hand with the software issues you have