The carta tunnels in Orzammar are the location of Jammer's Stash.
Walkthrough
As the party progresses through Jarvia's complex, The Warden will eventually find Jammer's Journal. It is in the first side passage to the right, and has details about opening a stash box. Reading the journal starts the Jammer's Stash quest. The journal mentions that the key to opening the stash box can only be obtained by taking the cheapest item from three other chests.
The Warden will then come across named 'common' boxes when progressing through Jarvia's tunnels. When a box is opened, ensure only the cheapest item from each box is taken, because for every wrong item taken, an injury will be received. This must be healed with either an Injury Kit, a trip to the party camp or the spell Cleansing Aura.
Correct Items
- (1) Kanky's Common Box: take the Silver Costume Ring
- (2) Jammer's Common Box: take the Iron Letter Opener
- (3) Pique's Common Box: take the Garnet Trinket
- (4) Jammer's Box
If you do take a wrong item, it will disappear. So you don't need to worry about lost profits.
Once the cheapest item from each box has been taken, a key will be received (note that there is no notice given - it just appears in your inventory when the last cheap item is taken). This is the key for Jammer's Stash, a chest which can be found in one of the further tunnels near to where you fought Jarvia.
Taking ALL or the wrong items may result in not being able to obtain the key to open the chest, therefore not completing the quest and receiving the reward. (On the PS3 and Xbox 360 you can still open the chest after you take all the items.)
Jammer's Stash Box
Jammer's Stash Box is located at the four-way intersection located on the northern most portion of the 'Carta Hideout" map. Go into the tunnel located east of the crossroads to find Jammer's Stash Box, which contains the rewards.
Rewards
Money 7 55 45