One problem related to radio/tape cd player has been reported for the 1999 GMC Sonoma. The most recently reported issues are listed below.
1999 GMC Sonoma experienced problems with transmission, cd player, tires and heating coil. Consumer concerned that dealer did not tell them that there was a recall on this vehicle. The transmission was replaced, exchanged rebuilt torque converter with trances filler 12 month or 12,000 mile warranty.