Bro, tell us more la... You just adviced to avoid later ppl think you just want to sabo ppl's business only....

Personally wouldn't recommend KF Audio, few years ago my brother went there for an A-Pillar custom mount for his tweeters. The A-pillar was returned with the carpet not stuck (like patches/crumpled)  and could not be put back onto the car properly.When we asked the old guy there and the other worker, they just ignored us  and said it's "like that".
Very disappointed with the service, even though we heard tons of good reviews regarding that place.

Definitely would recommend CV Audio in Uptown as they did a great job installing the Adire sub and tuning the gains in the car previously.

Just went to ea autoworks a few days ago.. Installation wise not bad. Neat wirings.. But on the cost side is kinda high la.. Not so affordable.. The head unit on the high side.. Right after installation I manage to find out I could save RM100++ on the pioneer head unit itself.. But all are friendly installer la. anyway.. So far so good..

Btw... I wanna ask.. My HU cannot unplug la boss.. It's like stucked.. Wanna keep in box when parking under hot hot sun.. Oh yea.. One more thing.. Sometimes my HU auto shuts down or restart.. How ah?

headunit already having it's own pnp connector, adding additional blue / red connector are not necessary....

if for new car, oem female connector can be use...for car without warranty it's only consider as additional installation cost as it's not a must to use due to warranty no more.