Many Cordoba instruments with onboard Fishman electronics will already have one strap button integrated into the output jack. If a strap button needs to be added to the bottom of the guitar, we recommend installing it halfway between the top and back of the guitar, where the two sides meet at the bottom of the guitar (see photo, #2). If needed, a strap button can be installed* on the side of the neck heel (#1). Here is a photo to help illustrate where we recommend installing strap buttons. However, we strongly encourage you to take your guitar to a professional for this installation, as it is possible that you could damage your guitar if this is not done properly.