Jazz Hybrid 10k discount lah...not City. Sorry for the misinformation..haha.

Any car brand SC Point of view, anything you install outside it will void related part warranty..

ie, adding reverse camera and changing player outside SC, touches electrical wiring, so if suddenly check engine ON or so on they may blame the additional things installed. but problem like suspension faulty, they won't void your warranty.

For me.. Install outside, keep the original, choose those with proper connector, no wire cut. anything need to claim may just change back.

if you are driving jazz hybrid .. go here Jazz Hybrid Club