Car Magazines With Prices On 2nd Hand Cars

Hi,

I am looking for a 2 nd hand pick up

have been going around, but when the dealers see an forigner thay never ( not my9 give an realistic price,

do some one have an idea where i can see in a thai magasine where the cars are listed, so i got an referance?

for example an jeep Cheroky 1998 model was sold in 2007 for 370 000 bath, to an thai i knew. i so the same car in srinakarin rd yesterday and it was impossiple to get that model less than 450 000 bath, thats just an example,

how much do an pick up for example decrease in price rougly per year?

i will be very happy for anny feed back

iam from finland