I did a search for pac tr7 and didn't see this specific problem so please forgive me if this is a repost. I have an IVA w205 and want to install the pac tr7. I have installed these before and it is supposed to be factory set for this feature. I hooked everything up properly and it didn't bypass the lockout. I decided I would go ahead and manually program it. So I put the programming switch to "on" and pulsed it 2 times. The light turned on when I touched the orange wire to ground but after waiting three seconds the unit did not flash twice to confirm that it accepted the programming and it still will not bypass the lockout. Am I doing something wrong or could this unit be faulty?