I would be re checking the wiring of the sound system, if it has started acting up straight after the sound system installation, i would start here, also run a diagnostic check just to check for any unresolved fault codes, was the battery disconnected during the sound system installation?

Answered by mhpautos (expert)
26,869 answers provided

Check ground circuits for secureness. During installation of the sound system, some ground circuit could have been tampered and not retorqued correctly.

Answered by KHLow2008 (expert)
39,792 answers provided

hey guys sorry for the late reply. ive done a computer check and discovered the fault
2 a/f sensors which is the fault but i am still not sure if that causes the car to stall!
i have sent it now to get all the wires replaced! i think its the airflow sensor. might get a jet performance a/f sensor

mhpautos the battery was not disconnected

Response from ali_timon
4 questions asked

Keep us updated on the progress.

Answered by KHLow2008 (expert)
39,792 answers provided

will do. thanks a lot :D

Response from ali_timon
4 questions asked

i had the whole wiring changed and the car is running perfectly. thanks a lot

Response from ali_timon
4 questions asked

You're welcome.

Have a great day.

Answered by KHLow2008 (expert)
39,792 answers provided