Today I went to Cha Sultan the shop name is SUZUKI CENTER next to PSO Pump, he has 2 golden swifts outside the shop hope you find it,
I asked that guy he said you will need 3 extra wires that will be connected to OBD so that it get KM input and fuel level , rest is done by the clock meter. for temperature a single wire is required that can be kept any where like if you want to know car internal temperature the place in dashboard and if outside then in pillar.
Now comes wiring I asked him that if check engine light goes on then because this is the main issue in these cars he said he installed two of these one has this problem and other is fine, further he said that the check engine light is because that car has CNG kit.
Shopkeeper said he will open OBD meter complete, I am confused ....