Yeah miles will be wrong, plus you can't see what the used one has. The one I got was only 2000 miles more than the original 239K at the time!! You can try to re-solder the connector pins while using the $30 panel.
M79 155K miles Jmod!! Rockin Stock tune Daily, Muscle Merc tune for track 14.85 @95.632004 Crown Vic LX
New Daily 2016 Dodge Charger R/T Road and track, purchase with 16K now 23K after 3 months. 5.7 Hemi, 8 speed ZF trans 3.06 open rear 13.98 @ 99.2 mph 4740 lbs with driver!!
R.I.P Photobucket 10 years of hosting down the drain
Project car 74 Chevy Laguna type S-3, # match 400 SBC
93 P-71 2001 P-73, 94 TC Exec, 96 TC Signature, 04 LX