Yup. Simple mod nia.
Unless yu wan complex setup...

come yau yip !

What Timer Module?

1x500kUF capacitor
1xdiod
1x5 way relay

That's the timer if I have the capacity, would have mass production & make profit liao.

500kUF to kumpul battery so it result in slow dim timer module.

1 way diod to refrain other component in the car to draw power from the 500kUF temporary "battery"

5 way relay as below:
+ for main power
- for ground
Switch ON to connect door swith
Switch OFF to connect alternator
Output connect DIOD then Capacitor then LED

When door switch is triggered, relay turn on output, diod take 1 way current to charge up capacitor, then LED lite up

When door closed, relay stop output. Diod refrain current flow back, capacitor continue supply power to LED until power drained

If alternator start charging(engine started), relay cut off supply to diod, capacitor continue supply power to LED until capacitor power drained

To have instant switch off LED after engine start, can add in another relay AFTER capacitor. When alternator start charging, staright away cut off power from capacitor.

Time to get down to busines liao

Your electrical knowledge not bad..

Well, i can get it work with 3 resistors and 2 transistor and 1 cap with more accurate timing module with FOC.

Anyway back2 batt thing..,
Any1 changed ori 45AH to 60AH one?

Batt tray kinda small la...
Can fit in2 batt tray or not?
TQ.

ps. My batt warranty no more oledi. 1 year only. Rite?

Yup, that's a good idea...
Any suggestions which brand...availability, price, ease of install?

Saw a couple of 3rd party antennas for sale at Pacific/The Store recently....
Cheap cheap only...
Only dunno how's the reception...

Maybe good idea to get one on standby?

Sorry, Bro...no pics.
Shorter than ori. Provided with 2 diff sized screws to attach to ori base.

Yours not working?
Mayb not due2 antenna?